I need more track time to confirm this but: my initial feeling is that I need more rear rubbers with the 1LE, I'm dealing with snap oversteer now. might have been because of cold tires... still the back is not following the front like it did. I'm running 4 x 275/40R20 Nitto NT05.

Strange, my stock 1LE is very comfortable and predictable at it's limit, extremely balanced and controllable. Perhaps give Pete of Pedders a call. He may be able to troubleshoot for you. The 1LE runs 285/35-20s front and rear, but with the funky mix of 20x10 F and 20x11s R. Perhaps wheel and tire choice has something to do with it.